A body of mass 5kg is thrown vertically up with velocity 20ms. What will be its momentum just before hitting the ground? Take upward direction as positive.
The velocity of the ball just before hitting the ground will be equal to the initial velocity of the ball but in a downwards direction.
Since upward direction is positive, the velocity of the object in the downward direction is negative.
Velocity V just before hitting the ground is −20ms
mass of the ball M=5Kg